--- /dev/null
+/* Header for code conversion stuff
+ Copyright (C) 1991, 1995 Free Software Foundation, Inc.
+ Copyright (C) 1995 Sun Microsystems, Inc.
+
+This file is part of XEmacs.
+
+XEmacs is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+XEmacs is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with XEmacs; see the file COPYING. If not, write to
+the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+/* Synched up with: Mule 2.3. Not in FSF. */
+
+/* 91.10.09 written by K.Handa <handa@etl.go.jp> */
+/* Rewritten by Ben Wing <ben@xemacs.org>. */
+
+#ifndef INCLUDED_file_coding_h_
+#define INCLUDED_file_coding_h_
+
+struct decoding_stream;
+struct encoding_stream;
+
+/* Coding system types. These go into the TYPE field of a
+ Lisp_Coding_System. */
+
+enum coding_system_type
+{
+ CODESYS_AUTODETECT, /* Automatic conversion. */
+#ifdef MULE
+ CODESYS_SHIFT_JIS, /* Shift-JIS; Hankaku (half-width) KANA
+ is also supported. */
+ CODESYS_ISO2022, /* Any ISO2022-compliant coding system.
+ Includes JIS, EUC, CTEXT */
+ CODESYS_BIG5, /* BIG5 (used for Taiwanese). */
+ CODESYS_UCS4, /* ISO 10646 UCS-4 */
+ CODESYS_UTF8, /* ISO 10646 UTF-8 */
+ CODESYS_CCL, /* Converter written in CCL. */
+#endif
+ CODESYS_NO_CONVERSION /* "No conversion"; used for binary files.
+ We use quotes because there really
+ is some conversion being applied,
+ but it appears to the user as if
+ the text is read in without conversion. */
+#ifdef DEBUG_XEMACS
+ ,CODESYS_INTERNAL /* Raw (internally-formatted) data. */
+#endif
+};
+
+enum eol_type
+{
+ EOL_AUTODETECT,
+ EOL_LF,
+ EOL_CRLF,
+ EOL_CR
+};
+typedef enum eol_type eol_type_t;
+
+#ifdef MULE
+typedef struct charset_conversion_spec charset_conversion_spec;
+struct charset_conversion_spec
+{
+ Lisp_Object from_charset;
+ Lisp_Object to_charset;
+};
+
+typedef struct
+{
+ Dynarr_declare (charset_conversion_spec);
+} charset_conversion_spec_dynarr;
+#endif
+
+struct Lisp_Coding_System
+{
+ struct lcrecord_header header;
+
+ /* Name and doc string of this coding system. */
+ Lisp_Object name;
+ Lisp_Object doc_string;
+
+ /* This is the major type of the coding system -- one of Big5, ISO2022,
+ Shift-JIS, etc. See the constants above. */
+ enum coding_system_type type;
+
+ /* Mnemonic string displayed in the modeline when this coding
+ system is active for a particular buffer. */
+ Lisp_Object mnemonic;
+
+ Lisp_Object post_read_conversion;
+ Lisp_Object pre_write_conversion;
+
+ eol_type_t eol_type;
+
+ /* Subsidiary coding systems that specify a particular type of EOL
+ marking, rather than autodetecting it. These will only be non-nil
+ if (eol_type == EOL_AUTODETECT). */
+ Lisp_Object eol_lf;
+ Lisp_Object eol_crlf;
+ Lisp_Object eol_cr;
+#ifdef MULE
+ struct
+ {
+ /* What are the charsets to be initially designated to G0, G1,
+ G2, G3? If t, no charset is initially designated. If nil,
+ no charset is initially designated and no charset is allowed
+ to be designated. */
+ Lisp_Object initial_charset[4];
+
+ /* If true, a designation escape sequence needs to be sent on output
+ for the charset in G[0-3] before that charset is used. */
+ unsigned char force_charset_on_output[4];
+
+ charset_conversion_spec_dynarr *input_conv;
+ charset_conversion_spec_dynarr *output_conv;
+
+ unsigned int shoort :1; /* C makes you speak Dutch */
+ unsigned int no_ascii_eol :1;
+ unsigned int no_ascii_cntl :1;
+ unsigned int seven :1;
+ unsigned int lock_shift :1;
+ unsigned int no_iso6429 :1;
+ unsigned int escape_quoted :1;
+ } iso2022;
+ struct
+ {
+ /* For a CCL coding system, these specify the CCL programs used for
+ decoding (input) and encoding (output). */
+ Lisp_Object decode;
+ Lisp_Object encode;
+ } ccl;
+#endif
+};
+typedef struct Lisp_Coding_System Lisp_Coding_System;
+
+DECLARE_LRECORD (coding_system, Lisp_Coding_System);
+#define XCODING_SYSTEM(x) XRECORD (x, coding_system, Lisp_Coding_System)
+#define XSETCODING_SYSTEM(x, p) XSETRECORD (x, p, coding_system)
+#define CODING_SYSTEMP(x) RECORDP (x, coding_system)
+#define CHECK_CODING_SYSTEM(x) CHECK_RECORD (x, coding_system)
+#define CONCHECK_CODING_SYSTEM(x) CONCHECK_RECORD (x, coding_system)
+
+#define CODING_SYSTEM_NAME(codesys) ((codesys)->name)
+#define CODING_SYSTEM_DOC_STRING(codesys) ((codesys)->doc_string)
+#define CODING_SYSTEM_TYPE(codesys) ((codesys)->type)
+#define CODING_SYSTEM_MNEMONIC(codesys) ((codesys)->mnemonic)
+#define CODING_SYSTEM_POST_READ_CONVERSION(codesys) \
+ ((codesys)->post_read_conversion)
+#define CODING_SYSTEM_PRE_WRITE_CONVERSION(codesys) \
+ ((codesys)->pre_write_conversion)
+#define CODING_SYSTEM_EOL_TYPE(codesys) ((codesys)->eol_type)
+#define CODING_SYSTEM_EOL_LF(codesys) ((codesys)->eol_lf)
+#define CODING_SYSTEM_EOL_CRLF(codesys) ((codesys)->eol_crlf)
+#define CODING_SYSTEM_EOL_CR(codesys) ((codesys)->eol_cr)
+
+#ifdef MULE
+#define CODING_SYSTEM_ISO2022_INITIAL_CHARSET(codesys, g) \
+ ((codesys)->iso2022.initial_charset[g])
+#define CODING_SYSTEM_ISO2022_FORCE_CHARSET_ON_OUTPUT(codesys, g) \
+ ((codesys)->iso2022.force_charset_on_output[g])
+#define CODING_SYSTEM_ISO2022_SHORT(codesys) ((codesys)->iso2022.shoort)
+#define CODING_SYSTEM_ISO2022_NO_ASCII_EOL(codesys) \
+ ((codesys)->iso2022.no_ascii_eol)
+#define CODING_SYSTEM_ISO2022_NO_ASCII_CNTL(codesys) \
+ ((codesys)->iso2022.no_ascii_cntl)
+#define CODING_SYSTEM_ISO2022_SEVEN(codesys) ((codesys)->iso2022.seven)
+#define CODING_SYSTEM_ISO2022_LOCK_SHIFT(codesys) \
+ ((codesys)->iso2022.lock_shift)
+#define CODING_SYSTEM_ISO2022_NO_ISO6429(codesys) \
+ ((codesys)->iso2022.no_iso6429)
+#define CODING_SYSTEM_ISO2022_ESCAPE_QUOTED(codesys) \
+ ((codesys)->iso2022.escape_quoted)
+#define CODING_SYSTEM_CCL_DECODE(codesys) ((codesys)->ccl.decode)
+#define CODING_SYSTEM_CCL_ENCODE(codesys) ((codesys)->ccl.encode)
+#endif /* MULE */
+
+#define XCODING_SYSTEM_NAME(codesys) \
+ CODING_SYSTEM_NAME (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_DOC_STRING(codesys) \
+ CODING_SYSTEM_DOC_STRING (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_TYPE(codesys) \
+ CODING_SYSTEM_TYPE (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_MNEMONIC(codesys) \
+ CODING_SYSTEM_MNEMONIC (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_POST_READ_CONVERSION(codesys) \
+ CODING_SYSTEM_POST_READ_CONVERSION (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_PRE_WRITE_CONVERSION(codesys) \
+ CODING_SYSTEM_PRE_WRITE_CONVERSION (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_EOL_TYPE(codesys) \
+ CODING_SYSTEM_EOL_TYPE (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_EOL_LF(codesys) \
+ CODING_SYSTEM_EOL_LF (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_EOL_CRLF(codesys) \
+ CODING_SYSTEM_EOL_CRLF (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_EOL_CR(codesys) \
+ CODING_SYSTEM_EOL_CR (XCODING_SYSTEM (codesys))
+
+#ifdef MULE
+#define XCODING_SYSTEM_ISO2022_INITIAL_CHARSET(codesys, g) \
+ CODING_SYSTEM_ISO2022_INITIAL_CHARSET (XCODING_SYSTEM (codesys), g)
+#define XCODING_SYSTEM_ISO2022_FORCE_CHARSET_ON_OUTPUT(codesys, g) \
+ CODING_SYSTEM_ISO2022_FORCE_CHARSET_ON_OUTPUT (XCODING_SYSTEM (codesys), g)
+#define XCODING_SYSTEM_ISO2022_SHORT(codesys) \
+ CODING_SYSTEM_ISO2022_SHORT (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_ISO2022_NO_ASCII_EOL(codesys) \
+ CODING_SYSTEM_ISO2022_NO_ASCII_EOL (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_ISO2022_NO_ASCII_CNTL(codesys) \
+ CODING_SYSTEM_ISO2022_NO_ASCII_CNTL (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_ISO2022_SEVEN(codesys) \
+ CODING_SYSTEM_ISO2022_SEVEN (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_ISO2022_LOCK_SHIFT(codesys) \
+ CODING_SYSTEM_ISO2022_LOCK_SHIFT (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_ISO2022_NO_ISO6429(codesys) \
+ CODING_SYSTEM_ISO2022_NO_ISO6429 (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_ISO2022_ESCAPE_QUOTED(codesys) \
+ CODING_SYSTEM_ISO2022_ESCAPE_QUOTED (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_CCL_DECODE(codesys) \
+ CODING_SYSTEM_CCL_DECODE (XCODING_SYSTEM (codesys))
+#define XCODING_SYSTEM_CCL_ENCODE(codesys) \
+ CODING_SYSTEM_CCL_ENCODE (XCODING_SYSTEM (codesys))
+#endif /* MULE */
+
+EXFUN (Fcoding_category_list, 0);
+EXFUN (Fcoding_category_system, 1);
+EXFUN (Fcoding_priority_list, 0);
+EXFUN (Fcoding_system_charset, 2);
+EXFUN (Fcoding_system_doc_string, 1);
+EXFUN (Fcoding_system_list, 0);
+EXFUN (Fcoding_system_name, 1);
+EXFUN (Fcoding_system_p, 1);
+EXFUN (Fcoding_system_property, 2);
+EXFUN (Fcoding_system_type, 1);
+EXFUN (Fcopy_coding_system, 2);
+EXFUN (Fdecode_big5_char, 1);
+EXFUN (Fdecode_coding_region, 4);
+EXFUN (Fdecode_shift_jis_char, 1);
+EXFUN (Fdetect_coding_region, 3);
+EXFUN (Fencode_big5_char, 1);
+EXFUN (Fencode_coding_region, 4);
+EXFUN (Fencode_shift_jis_char, 1);
+EXFUN (Ffind_coding_system, 1);
+EXFUN (Fget_coding_system, 1);
+EXFUN (Fmake_coding_system, 4);
+EXFUN (Fset_coding_category_system, 2);
+EXFUN (Fset_coding_priority_list, 1);
+EXFUN (Fsubsidiary_coding_system, 2);
+
+extern Lisp_Object Qucs4, Qutf8;
+extern Lisp_Object Qbig5, Qccl, Qcharset_g0;
+extern Lisp_Object Qcharset_g1, Qcharset_g2, Qcharset_g3, Qcoding_system_error;
+extern Lisp_Object Qcoding_systemp, Qcr, Qcrlf, Qdecode, Qencode;
+extern Lisp_Object Qeol_cr, Qeol_crlf, Qeol_lf, Qeol_type, Qescape_quoted;
+extern Lisp_Object Qforce_g0_on_output, Qforce_g1_on_output;
+extern Lisp_Object Qforce_g2_on_output, Qforce_g3_on_output;
+extern Lisp_Object Qinput_charset_conversion, Qiso2022, Qlf, Qlock_shift;
+extern Lisp_Object Qmnemonic, Qno_ascii_cntl, Qno_ascii_eol, Qno_conversion;
+extern Lisp_Object Qraw_text;
+extern Lisp_Object Qno_iso6429, Qoutput_charset_conversion;
+extern Lisp_Object Qpost_read_conversion, Qpre_write_conversion, Qseven;
+extern Lisp_Object Qshift_jis, Qshort, Vcoding_system_for_read;
+extern Lisp_Object Vcoding_system_for_write, Vcoding_system_hash_table;
+extern Lisp_Object Vfile_name_coding_system, Vkeyboard_coding_system;
+extern Lisp_Object Vterminal_coding_system;
+
+/* Flags indicating current state while converting code. */
+
+/* Used by everyone. */
+
+#define CODING_STATE_END (1 << 0) /* If set, this is the last chunk of
+ data being processed. When this
+ is finished, output any necessary
+ terminating control characters,
+ escape sequences, etc. */
+#define CODING_STATE_CR (1 << 1) /* If set, we just saw a CR. */
+
+
+/* Used by Big 5 on output. */
+#ifdef MULE
+#define CODING_STATE_BIG5_1 (1 << 2) /* If set, we just encountered
+ LEADING_BYTE_BIG5_1. */
+#define CODING_STATE_BIG5_2 (1 << 3) /* If set, we just encountered
+ LEADING_BYTE_BIG5_2. */
+
+
+/* Used by ISO2022 on input and output. */
+
+#define CODING_STATE_R2L (1 << 4) /* If set, the current
+ directionality is right-to-left.
+ Otherwise, it's left-to-right. */
+
+
+/* Used by ISO2022 on input. */
+
+#define CODING_STATE_ESCAPE (1 << 5) /* If set, we're currently parsing
+ an escape sequence and the upper
+ 16 bits should be looked at to
+ indicate what partial escape
+ sequence we've seen so far.
+ Otherwise, we're running
+ through actual text. */
+#define CODING_STATE_SS2 (1 << 6) /* If set, G2 is invoked into GL, but
+ only for the next character. */
+#define CODING_STATE_SS3 (1 << 7) /* If set, G3 is invoked into GL,
+ but only for the next character.
+ If both CODING_STATE_SS2 and
+ CODING_STATE_SS3 are set,
+ CODING_STATE_SS2 overrides; but
+ this probably indicates an error
+ in the text encoding. */
+#ifdef ENABLE_COMPOSITE_CHARS
+#define CODING_STATE_COMPOSITE (1 << 8) /* If set, we're currently processing
+ a composite character (i.e. a
+ character constructed by
+ overstriking two or more
+ characters). */
+#endif /* ENABLE_COMPOSITE_CHARS */
+
+
+/* CODING_STATE_ISO2022_LOCK is the mask of flags that remain on until
+ explicitly turned off when in the ISO2022 encoder/decoder. Other flags are
+ turned off at the end of processing each character or escape sequence. */
+#ifdef ENABLE_COMPOSITE_CHARS
+# define CODING_STATE_ISO2022_LOCK \
+ (CODING_STATE_END | CODING_STATE_COMPOSITE | CODING_STATE_R2L)
+#else
+# define CODING_STATE_ISO2022_LOCK (CODING_STATE_END | CODING_STATE_R2L)
+#endif
+
+#define CODING_STATE_BIG5_LOCK CODING_STATE_END
+
+/* Flags indicating what we've seen so far when parsing an
+ ISO2022 escape sequence. */
+enum iso_esc_flag
+{
+ /* Partial sequences */
+ ISO_ESC_NOTHING, /* Nothing has been seen. */
+ ISO_ESC, /* We've seen ESC. */
+ ISO_ESC_2_4, /* We've seen ESC $. This indicates
+ that we're designating a multi-byte, rather
+ than a single-byte, character set. */
+ ISO_ESC_2_8, /* We've seen ESC 0x28, i.e. ESC (.
+ This means designate a 94-character
+ character set into G0. */
+ ISO_ESC_2_9, /* We've seen ESC 0x29 -- designate a
+ 94-character character set into G1. */
+ ISO_ESC_2_10, /* We've seen ESC 0x2A. */
+ ISO_ESC_2_11, /* We've seen ESC 0x2B. */
+ ISO_ESC_2_12, /* We've seen ESC 0x2C -- designate a
+ 96-character character set into G0.
+ (This is not ISO2022-standard.
+ The following 96-character
+ control sequences are standard,
+ though.) */
+ ISO_ESC_2_13, /* We've seen ESC 0x2D -- designate a
+ 96-character character set into G1.
+ */
+ ISO_ESC_2_14, /* We've seen ESC 0x2E. */
+ ISO_ESC_2_15, /* We've seen ESC 0x2F. */
+ ISO_ESC_2_4_8, /* We've seen ESC $ 0x28 -- designate
+ a 94^N character set into G0. */
+ ISO_ESC_2_4_9, /* We've seen ESC $ 0x29. */
+ ISO_ESC_2_4_10, /* We've seen ESC $ 0x2A. */
+ ISO_ESC_2_4_11, /* We've seen ESC $ 0x2B. */
+ ISO_ESC_2_4_12, /* We've seen ESC $ 0x2C. */
+ ISO_ESC_2_4_13, /* We've seen ESC $ 0x2D. */
+ ISO_ESC_2_4_14, /* We've seen ESC $ 0x2E. */
+ ISO_ESC_2_4_15, /* We've seen ESC $ 0x2F. */
+ ISO_ESC_5_11, /* We've seen ESC [ or 0x9B. This
+ starts a directionality-control
+ sequence. The next character
+ must be 0, 1, 2, or ]. */
+ ISO_ESC_5_11_0, /* We've seen 0x9B 0. The next character must be ]. */
+ ISO_ESC_5_11_1, /* We've seen 0x9B 1. The next character must be ]. */
+ ISO_ESC_5_11_2, /* We've seen 0x9B 2. The next character must be ]. */
+
+ /* Full sequences. */
+#ifdef ENABLE_COMPOSITE_CHARS
+ ISO_ESC_START_COMPOSITE, /* Private usage for START COMPOSING */
+ ISO_ESC_END_COMPOSITE, /* Private usage for END COMPOSING */
+#endif /* ENABLE_COMPOSITE_CHARS */
+ ISO_ESC_SINGLE_SHIFT, /* We've seen a complete single-shift sequence. */
+ ISO_ESC_LOCKING_SHIFT,/* We've seen a complete locking-shift sequence. */
+ ISO_ESC_DESIGNATE, /* We've seen a complete designation sequence. */
+ ISO_ESC_DIRECTIONALITY,/* We've seen a complete ISO6429 directionality
+ sequence. */
+ ISO_ESC_LITERAL /* We've seen a literal character ala
+ escape-quoting. */
+};
+
+/* Macros to define code of control characters for ISO2022's functions. */
+ /* code */ /* function */
+#define ISO_CODE_LF 0x0A /* line-feed */
+#define ISO_CODE_CR 0x0D /* carriage-return */
+#define ISO_CODE_SO 0x0E /* shift-out */
+#define ISO_CODE_SI 0x0F /* shift-in */
+#define ISO_CODE_ESC 0x1B /* escape */
+#define ISO_CODE_DEL 0x7F /* delete */
+#define ISO_CODE_SS2 0x8E /* single-shift-2 */
+#define ISO_CODE_SS3 0x8F /* single-shift-3 */
+#define ISO_CODE_CSI 0x9B /* control-sequence-introduce */
+#endif /* MULE */
+
+/* Distinguishable categories of encodings.
+
+ This list determines the initial priority of the categories.
+
+ For better or worse, currently Mule files are encoded in 7-bit ISO 2022.
+ For this reason, under Mule ISO_7 gets highest priority.
+
+ Putting NO_CONVERSION second prevents "binary corruption" in the
+ default case in all but the (presumably) extremely rare case of a
+ binary file which contains redundant escape sequences but no 8-bit
+ characters.
+
+ The remaining priorities are based on perceived "internationalization
+ political correctness." An exception is UCS-4 at the bottom, since
+ basically everything is compatible with UCS-4, but it is likely to
+ be very rare as an external encoding. */
+
+enum coding_category_type
+{
+ /* must be a contiguous range of values 0 -- CODING_CATEGORY_LAST - 1 */
+#ifdef MULE
+ CODING_CATEGORY_ISO_7, /* ISO2022 system using only seven-bit bytes,
+ no locking shift */
+ CODING_CATEGORY_NO_CONVERSION,
+ CODING_CATEGORY_UTF8,
+ CODING_CATEGORY_ISO_8_1, /* ISO2022 system using eight-bit bytes,
+ no locking shift, no designation sequences,
+ one-dimension characters in the upper half. */
+ CODING_CATEGORY_ISO_8_2, /* ISO2022 system using eight-bit bytes,
+ no locking shift, no designation sequences,
+ two-dimension characters in the upper half. */
+ CODING_CATEGORY_ISO_8_DESIGNATE, /* ISO2022 system using eight-bit bytes,
+ no locking shift, no single shift,
+ using designation to switch charsets */
+ CODING_CATEGORY_ISO_LOCK_SHIFT, /* ISO2022 system using locking shift */
+ CODING_CATEGORY_SHIFT_JIS,
+ CODING_CATEGORY_BIG5,
+ CODING_CATEGORY_UCS4,
+#else /* not MULE */
+ CODING_CATEGORY_NO_CONVERSION,
+#endif /* MULE */
+ CODING_CATEGORY_LAST /* not a real coding category */
+};
+
+#ifdef MULE
+#define CODING_CATEGORY_SHIFT_JIS_MASK \
+ (1 << CODING_CATEGORY_SHIFT_JIS)
+#define CODING_CATEGORY_ISO_7_MASK \
+ (1 << CODING_CATEGORY_ISO_7)
+#define CODING_CATEGORY_ISO_8_DESIGNATE_MASK \
+ (1 << CODING_CATEGORY_ISO_8_DESIGNATE)
+#define CODING_CATEGORY_ISO_8_1_MASK \
+ (1 << CODING_CATEGORY_ISO_8_1)
+#define CODING_CATEGORY_ISO_8_2_MASK \
+ (1 << CODING_CATEGORY_ISO_8_2)
+#define CODING_CATEGORY_ISO_LOCK_SHIFT_MASK \
+ (1 << CODING_CATEGORY_ISO_LOCK_SHIFT)
+#define CODING_CATEGORY_BIG5_MASK \
+ (1 << CODING_CATEGORY_BIG5)
+#define CODING_CATEGORY_UCS4_MASK \
+ (1 << CODING_CATEGORY_UCS4)
+#define CODING_CATEGORY_UTF8_MASK \
+ (1 << CODING_CATEGORY_UTF8)
+#endif
+#define CODING_CATEGORY_NO_CONVERSION_MASK \
+ (1 << CODING_CATEGORY_NO_CONVERSION)
+#define CODING_CATEGORY_NOT_FINISHED_MASK \
+ (1 << 30)
+
+#ifdef MULE
+/* Convert shift-JIS code (sj1, sj2) into internal string
+ representation (c1, c2). (The leading byte is assumed.) */
+
+#define DECODE_SJIS(sj1, sj2, c1, c2) \
+do { \
+ int I1 = sj1, I2 = sj2; \
+ if (I2 >= 0x9f) \
+ c1 = (I1 << 1) - ((I1 >= 0xe0) ? 0xe0 : 0x60), \
+ c2 = I2 + 2; \
+ else \
+ c1 = (I1 << 1) - ((I1 >= 0xe0) ? 0xe1 : 0x61), \
+ c2 = I2 + ((I2 >= 0x7f) ? 0x60 : 0x61); \
+} while (0)
+
+/* Convert the internal string representation of a Shift-JIS character
+ (c1, c2) into Shift-JIS code (sj1, sj2). The leading byte is
+ assumed. */
+
+#define ENCODE_SJIS(c1, c2, sj1, sj2) \
+do { \
+ int I1 = c1, I2 = c2; \
+ if (I1 & 1) \
+ sj1 = (I1 >> 1) + ((I1 < 0xdf) ? 0x31 : 0x71), \
+ sj2 = I2 - ((I2 >= 0xe0) ? 0x60 : 0x61); \
+ else \
+ sj1 = (I1 >> 1) + ((I1 < 0xdf) ? 0x30 : 0x70), \
+ sj2 = I2 - 2; \
+} while (0)
+#endif /* MULE */
+
+Lisp_Object make_decoding_input_stream (Lstream *stream,
+ Lisp_Object codesys);
+Lisp_Object make_encoding_input_stream (Lstream *stream,
+ Lisp_Object codesys);
+Lisp_Object make_decoding_output_stream (Lstream *stream,
+ Lisp_Object codesys);
+Lisp_Object make_encoding_output_stream (Lstream *stream,
+ Lisp_Object codesys);
+Lisp_Object decoding_stream_coding_system (Lstream *stream);
+Lisp_Object encoding_stream_coding_system (Lstream *stream);
+void set_decoding_stream_coding_system (Lstream *stream,
+ Lisp_Object codesys);
+void set_encoding_stream_coding_system (Lstream *stream,
+ Lisp_Object codesys);
+void determine_real_coding_system (Lstream *stream, Lisp_Object *codesys_in_out,
+ eol_type_t *eol_type_in_out);
+
+
+#ifndef MULE
+#define MIN_LEADING_BYTE 0x80
+/* These need special treatment in a string and/or character */
+#ifdef ENABLE_COMPOSITE_CHARS
+#define LEADING_BYTE_COMPOSITE 0x80 /* for a composite character */
+#endif
+#define LEADING_BYTE_CONTROL_1 0x8F /* represent normal 80-9F */
+#define LEADING_BYTE_LATIN_ISO8859_1 0x81 /* Right half of ISO 8859-1 */
+#define BYTE_C1_P(c) ((unsigned int) ((unsigned int) (c) - 0x80) < 0x20)
+#define BUFBYTE_FIRST_BYTE_P(c) ((c) < 0xA0)
+#define BUFBYTE_LEADING_BYTE_P(c) BYTE_C1_P (c)
+#endif /* not MULE */
+
+#endif /* INCLUDED_file_coding_h_ */
+
projects / chise / xemacs-chise.git- / blobdiff